因此将粗糙集应用于基于案例推理，提出基于粗糙案例推理的在线自我学习决策方法。
A new decision-making approach that rough set is applied to CBR is proposed to fulfill an on-line knowledge self-learning process.
既有许多成功的案例，也有许多失败的教训，许多企业仍对在线学习持观望态度。
With numerous cases of both success and failure, a lot of enterprises hold an uncertain attitude towards it.
既有许多成功的案例，也有许多失败的教训，许多企业仍对在线学习持观望态度。
With numerous cases of both success and failure, a lot of enterprises hold an uncertain attitude towards it.
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